Results 21 to 30 of about 928 (129)
Design and performance of a toroidal radiofrequency volume coil with intrinsic electromagnetic interference rejection for low-field portable Halbach-based MRI systems. [PDF]
Magn Reson MedAbstract Purpose One of the intrinsic limitations of low‐field MRI is low signal‐to‐noise ratio, which can be further reduced by electromagnetic interference (EMI) due to the lack of a Faraday shielded room. To address this issue, we propose a novel radiofrequency (RF) coil design that is inherently less sensitive to EMI while maintaining high receive ...
Vliem J +4 more
europepmc +2 more sources
Research on the orientation structure of permanent ferrite multi-polar magnet ring
上海师范大学学报. 自然科学版, 2019 The Halbach array structure was innovatively applied to the orientation structure of the injection mold of the anisotropic ferrite multi-polar magnet ring for the contrastive study of the ordinary radial oriented structure and Halbach array oriented ...
CHEN Wei, WANG Yunxiang, LI Gang
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The impact of the magnetization direction on the static and dynamic parameters of an electromagnetic linear actuator [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2018 This paper presents a simulation analysis of the impact of magnetization direction on the static and dynamic parameters of an electromagnetic linear actuator.
Krzysztof Just, Paweł Piskur
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Optimal Design of a New Rotating Magnetic Beacon Structure Based on Halbach Array
Applied Sciences, 2022 At present, the magnetic signals generated by the common artificial magnetic beacons change periodically with sinusoidal law, and there is a multi-value problem in measuring the target orientation by using the phase information of the magnetic signals ...
Bo Li +3 more
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AIP Advances, 2018 Halbach permanent magnet (PM) array has attracted tremendous research attention in the development of electromagnetic generators for its unique properties. This paper has proposed a generalized analytical model for linear generators.
Yimin Tan, Kejian Lin, Jean W. Zu
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Sensors, 2021 In the linear and planar motors, the 1D Halbach magnet array is extensively used. The sinusoidal property of the magnetic field deteriorates by analyzing the magnetic field at a small air gap.
Guangdou Liu +3 more
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Hybrid manufacturing of Halbach arrays using sintered NdFeB magnets and additively manufactured soft magnet frames [PDF]
AIP AdvancesUsing sintered neodymium–iron–boron (NdFeB) cube magnets and additively manufactured polylactic acid (PLA) and steel frames, we investigate hybrid manufacturing approaches for enhancing magnetic fields in cylindrical Halbach arrays while reducing ...
Levi Cosgrove +6 more
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Optimum Design for Slot-type of Stator Based on PM Motor with Halbach Structure
MATEC Web of Conferences, 2015 The performance of permanent magnet motor is directly influenced by the PM structure of rotor and the slot type of stator. An emerging rotor magnetization type of PM motor is Halbach structure, which has obvious advantages in comparison to ordinary ...
Zhu Yongxin, Qiao Mingzhong
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MachinesConventional finite element method (FEM) has a complex model and a long optimization time for Halbach array PM machines. This paper proposes a hybrid analytical method that combines the subdomain method (SM) and the magnetic circuit method (MEC) for ...
Jinlin Huang, Qingfeng Sun, Chen Wang
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Fully 3D‐Printed Wave‐Wound Electromagnetic Motors
Advanced Materials Technologies, EarlyView.This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe +4 more
wiley +1 more source